What is inside:
Through the Telegram
Through the BotFather service
Through the Telegram
1. Log in to your Telegram chatbot, click on the three dots in the upper right corner and select "Manage Bot":
2. Click on the avatar icon:
5. Select a new avatar from the files on your computer and click on the "Open" button:
6. Choose how your avatar will be displayed and click on the "Save" button:
Through the BotFather service
1. Open @BotFather and enter the /setuserpic command:
2. Select the bot whose avatar you want to change from the list:
3. Submit a new image: